Property Names

gistfile1.txt

#import <Foundation/Foundation.h>

@interface NSObject (PropertyNames)

+ (NSArray *)propertyNames;
+ (NSArray *)propertyNamesRecursive:(BOOL)recursive;

@end

gistfile2.txt

#import "NSObject+PropertyNames.h"
#import <Foundation/NSObjCRuntime.h>
#import <objc/runtime.h>

@implementation NSObject (PropertyNames)

+ (NSArray *)propertyNames
{
    return [self propertyNamesRecursive:NO];
}

+ (NSArray *)propertyNamesRecursive:(BOOL)recursive
{
    NSMutableArray *propertyNames = [@[] mutableCopy];
    
    unsigned int outCount, i;
    objc_property_t *propertyList = class_copyPropertyList(self, &outCount);
    
    for (i = 0; i < outCount; i++)
    {
    	objc_property_t property = propertyList[i];
    	NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property)
                                                          encoding:NSUTF8StringEncoding];
        [propertyNames addObject:propertyName];
    }
    
    free(propertyList);
    
    Class superclass = class_getSuperclass(self);
    if (superclass && recursive)
    {
        NSArray *superProperties = [superclass propertyNamesRecursive:YES];
        return [propertyNames arrayByAddingObjectsFromArray:superProperties];
    }
    else
    {
        return propertyNames;
    }
}

@end